Heh, well, its vanishing small numbers but, lets see....
iQuad (US/Can) 6-10 members
Island Quad (Can) - 4? members
Too Much Fun (US) - 3 members.
These are teams that I know of specifically, I have no doubt there's more given the huge resurgence in quad flyers, so, hopefully some will pipe up
So roughly speaking the European/Japanese contingent are 88 and the USA could get us to 100.
Should we concentrate our efforts on 2012 in London! <grins>